I have a set of bars off of a Kawasaki dirtbike, they are 7/8" and steel and are actually lighter than a set of bars off of a 24" DK Fury BMX cruiser. I found these Moose bars at my local motorcycle store the other day and picked them up for $18.00:
'81 Laguna Cruiser with Yamaha DT-1 (Repop) bars. Great bars for a cruiser. Nice sweep for natural wrist position but width (34") keeps is from feeling cramped.
I put a set of Renthal bars on my 26" BMX cruiser. I love the cross brace pieces. Now I'm always on the lookout for cool motorcycle handle bars. If the price is right. Gary